Tetrabutylurea TBU CAS 4559-86-8

Tetrabutylurea is an organic compound with the chemical formula (C₄H₉)₂NC(O)N(C₄H₉)₂. It appears as a colorless to pale yellow liquid or low-melting solid, with a mild, characteristic odor. Soluble in organic solvents such as ethanol, acetone, and toluene, but practically insoluble in water. Commonly used as an inert solvent or reaction medium in chemical synthesis, particularly in organometallic and polymerization reactions. Also functions as a plasticizer for polymers, a corrosion inhibitor in lubricants, and an additive in metalworking fluids. Stable under normal conditions and should be stored away from strong oxidizing agents.

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Model:
4559-86-8
Brand:
Boss Chemical
Code:
4559-86-8

Product Description

Tetrabutylurea Basic information
Product Name:	Tetrabutylurea
CAS:	4559-86-8
MF:	C17H36N2O
MW:	284.48
EINECS:	224-929-8
Mol File:	4559-86-8.mol
Tetrabutylurea Chemical Properties
Melting point	-60 °C
Boiling point	163 °C / 12mmHg
density	0.88
vapor pressure	0.019Pa at 20℃
refractive index	1.4520-1.4560
Fp	93 °C
storage temp.	Store at room temperature
pka	-0.61±0.70(Predicted)
form	clear liquid
color	Colorless to Light yellow to Light orange
Water Solubility	4.3mg/L at 20℃
InChI	InChI=1S/C17H36N2O/c1-5-9-13-18(14-10-6-2)17(20)19(15-11-7-3)16-12-8-4/h5-16H2,1-4H3
InChIKey	SNDGLCYYBKJSOT-UHFFFAOYSA-N
SMILES	N(CCCC)(CCCC)C(N(CCCC)CCCC)=O
LogP	6.2 at 25℃
CAS DataBase Reference	4559-86-8(CAS DataBase Reference)
NIST Chemistry Reference	Urea, tetrabutyl-(4559-86-8)
EPA Substance Registry System	Urea, tetrabutyl- (4559-86-8)

Item	Inspection standard	Inspection Results
Appearance	Clear Liquid	Clear Liquid
Purity % ≥	99.5	99.60
Dibutylamine %≤	0.05	0.04
Density (20℃)g/cm3	0．874~0.880	0.875
Color,APHA ≤	30	5.3
Sulphur PPM ≤	1	0.10
Cl PPM ≤	5	0.94
Water % ≤	0.1	0.04
Flash point ℃ ≥	140	158

Tetrabutylurea TBU CAS 4559-86-8 Plastic plasticizer Catalyst for phosgenation reaction Lubricant additive Aminoplast additive

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Chemical detection methods

Spectroscopic Analysis Methods

Ultraviolet-Vis Spectrophotometry (UV-Vis)
Infrared Spectroscopy (IR/FTIR)
Atomic Absorption Spectroscopy (AAS)
X-ray Fluorescence Spectroscopy (XRF)
Nuclear Magnetic Resonance Spectroscopy (NMR)

Chromatographic Analysis

Gas Chromatography (GC)
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Mass Spectrometry Analysis

GC-MS / LC-MS/MS: Qualitative and Quantitative Analysis
ICP-MS: Trace Metal Elements (ppb Level)
TOF-MS: Precise Molecular Weight Determination

Electrochemical analysis methods

Polypotentiometric methods
Conductivity methods
Polarographic methods / Voltammetric methods
Coulometric analysis

Thermal Analysis Methods

Thermogravimetric Analysis (TGA)
Differential Scanning Calorimetry (DSC)
Differential Thermal Analysis (DTA)

Classical wet chemical analysis

Titration analysis
Gravity analysis